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<p>A system for scalable, fault-tolerant, distributed computation over
large data collections.</p>

<p>Applications implement {@link org.apache.hadoop.mapred.Mapper} and
{@link org.apache.hadoop.mapred.Reducer} interfaces.  These are submitted
as a {@link org.apache.hadoop.mapred.JobConf} and are applied to data
stored in a {@link org.apache.hadoop.fs.FileSystem}.</p>

<p>See <a href="http://labs.google.com/papers/mapreduce.html">Google's
original Map/Reduce paper</a> for background information.</p>

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